Correct Answer: C

Rationale: The phrase 'and new tires' is misplaced in the sentence as it disrupts the flow of information. It introduces unnecessary detail that does not directly contribute to the main point of the sentence, which is identifying the ownership of the car. Choices A, B, and D are all essential parts of the sentence that help convey the location of the car and its ownership, making them correctly placed within the sentence.

Correct Answer: B

Rationale: The correct punctuation needed in the sentence is a comma. A comma should be placed after 'festivities' to separate the two independent clauses in the sentence: 'In addition to the hospital's regularly scheduled festivities' and 'the custodians celebrate with a party of their own.' The comma helps in improving the clarity and structure of the sentence by indicating a pause between the clauses. Choice A, 'Period,' is incorrect because a period would create two separate sentences rather than connecting the related clauses. Choice C, 'Apostrophe,' is incorrect as there is no need for an apostrophe in this context. Choice D, 'Semicolon,' is incorrect because a semicolon is used to join closely related independent clauses, which is not the case in the given sentence.

Correct Answer: A

Rationale: The word 'her' is the best substitute for the underlined words 'the nurse' in the sentence. This substitution avoids redundancy and provides clarity by referring back to the nurse as a third-person singular pronoun, maintaining coherence and avoiding ambiguity. 'He' (choice B) and 'his' (choice C) are incorrect as they do not align with the gender of the nurse in the sentence. 'It' (choice D) is also incorrect as it does not refer appropriately to a person.

Correct Answer: C

Rationale: The correct word to use in this sentence is 'taking' to show the continuous aspect of the action. The sentence should read: 'Having taking one pill at bedtime, the patient was able to sleep for eight hours.' 'Taking' is the present participle form of the verb 'take,' which is appropriate in this context to indicate the ongoing action of taking a pill at bedtime. Choice A, 'took,' is incorrect as it is the simple past tense, not suitable for this sentence's structure. Choice B, 'take,' is the base form of the verb, which does not fit the sentence's requirement for a participle. Choice D, 'taken,' is the past participle form, which is also unsuitable for showing the ongoing action required in this context.

Correct Answer: B

Rationale: The correct answer is B, 'lead.' The correct spelling should be 'led' in the context of the sentence. 'Lead' is a present tense verb, while 'led' is the past tense of 'lead' when used in the sense of guiding or showing the way. Choice A, 'attending,' is spelled correctly. Choice C, 'entourage,' is spelled correctly. Choice D, 'interns,' is spelled correctly. The error lies in the verb 'lead' being used incorrectly in the past tense form.